<?php 
	include "inc/public_header.php";
	
	$uuid = $_REQUEST["uuid"];	//手机Session字符串
	$away = $_REQUEST["way"];	//验证码用途标识   1秀场  2回复
	if(!isset($uuid) || $uuid=="" || !isset($away) || $away==""){
		die;
	}
	
    //文件头... 
    header("Content-type: image/png"); 
    //创建真彩色白纸 
    $im = @imagecreatetruecolor(70, 25) or die("建立图像失败"); 
    //获取背景颜色 
    $background_color = imagecolorallocate($im, 255, 255, 255); 
    //填充背景颜色(这个东西类似油桶) 
    imagefill($im,0,0,$background_color); 
    //获取边框颜色 
    $border_color = imagecolorallocate($im,200,200,200); 
    //画矩形，边框颜色200,200,200 
    imagerectangle($im,0,0,69,24,$border_color); 

    //逐行炫耀背景，全屏用1或0 
    for($i=2;$i<23;$i++){ 
        //获取随机淡色         
        $line_color = imagecolorallocate($im,rand(200,255),rand(200,255),rand(200,255)); 
        //画线 
        imageline($im,2,$i,67,$i,$line_color); 
    } 

    //设置字体大小 
    $font_size=18; 

    //设置印上去的文字 
    //$Str[0] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; 
    //$Str[1] = "abcdefghijklmnopqrstuvwxyz"; 
	$Str[0] = "01234567891234567890123456"; 
	$Str[1] = "01234567891234567890123456"; 
    $Str[2] = "01234567891234567890123456"; 

    //获取第1个随机文字 
    $imstr[0]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[0]["x"] = rand(2,5); 
    $imstr[0]["y"] = rand(1,4); 

    //获取第2个随机文字 
    $imstr[1]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[1]["x"] = $imstr[0]["x"]+$font_size-1+rand(0,1); 
    $imstr[1]["y"] = rand(1,3); 

    //获取第3个随机文字 
    $imstr[2]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[2]["x"] = $imstr[1]["x"]+$font_size-1+rand(0,1); 
    $imstr[2]["y"] = rand(1,4); 

    //获取第4个随机文字 
    $imstr[3]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[3]["x"] = $imstr[2]["x"]+$font_size-1+rand(0,1); 
    $imstr[3]["y"] = rand(1,3); 

	//随机验证码
	$rcode = $imstr[0]["s"].$imstr[1]["s"].$imstr[2]["s"].$imstr[3]["s"]; 
	setcookieparam("randimg",$rcode);
	
	//放入数据库中
	$sql = "delete from user_phone_imgvcode where uuid='".$uuid."' and away='".$away."'";
	$db->query($sql);
	$sql = "insert into user_phone_imgvcode(uuid,away,avalue) values('".$uuid."','".$away."','".$rcode."')";
	$db->query($sql);
	
    //写入随机字串 
    for($i=0;$i<4;$i++){ 
        //获取随机较深颜色 
        $text_color = imagecolorallocate($im,rand(50,180),rand(50,180),rand(50,180)); 
        //画文字 
        imagechar($im,$font_size,$imstr[$i]["x"],$imstr[$i]["y"],$imstr[$i]["s"],$text_color); 
    } 

    //显示图片 
    imagepng($im); 
    //销毁图片 
    imagedestroy($im); 
?>